Prothon gets Major Facelift in Vers 0.1.0 [Prothon]

[Robin Becker]

Jacek Generowicz wrote:

........
> 
> Looks like compiling this partucular high-level dynamically typed
> language makes it run considerably faster. Let's repeat the exercise
> for 3 more implementations of this particular language I just happen
> to have lying around on my machine, and compare it to Python's
> performance on the equivalent program:
> 
> 
>>>>def fib(n):
> 
> ...     if n<2: return 1
> ...     return fib(n-1) + fib(n-2)
> ... 
> 
>>>>import time
>>>>a=time.time(); fib(35); time.time() - a
> 
> 14930352
> 20.425565958023071
> 
> 
> Here are the results gathered in a table:
> 
> 
>     Name             Interpreted        Compiled
>     
>     LispWorks            66               1.0 s
>     Clisp                41               9.5 s
>     CMUCL          Got bored waiting      1.5 s
>     SBCL           Compiles everything    1.6 s
>     Python         Compiles everything    20  s
> 
> 
> So, we have times of 1.0s, 1.5s, 1.6s, 9.5s and 20s. Now one of those
> Common Lisp implementations does NOT compile to native; it compiles to
> bytecode. Can you guess which one it is, by looking at the timings ?

I tried a modification in prothon and was suprised at how bad it was. My 
windows box started to thrash with fib(35) so I reduced it to fib(25)

#fib.py
def fib(n):
     if n<2: return 1
     return fib(n-1) + fib(n-2)
print fib(25)


C:\Prothon\pr\test>timethis \Prothon\prothon fib.py

TimeThis :  Command Line :  \Prothon\prothon fib.py
TimeThis :    Start Time :  Tue May 25 19:41:32 2004

121393

TimeThis :  Command Line :  \Prothon\prothon fib.py
TimeThis :    Start Time :  Tue May 25 19:41:32 2004
TimeThis :      End Time :  Tue May 25 19:42:24 2004
TimeThis :  Elapsed Time :  00:00:52.235

compare with

C:\Prothon\pr\test>timethis python fib.py

TimeThis :  Command Line :  python fib.py
TimeThis :    Start Time :  Tue May 25 19:43:02 2004

121393

TimeThis :  Command Line :  python fib.py
TimeThis :    Start Time :  Tue May 25 19:43:02 2004
TimeThis :      End Time :  Tue May 25 19:43:05 2004
TimeThis :  Elapsed Time :  00:00:02.673

In fact the python time for fib(35) was about 31.1 seconds (ie less than 
prothon for fib(25)) so something is spectacularly amiss with prothon.
-- 
Robin Becker